Dead in Damascus

Given the clandestine nature of the war on terror, it's often hard to know how much progress we're making. But Tuesday's death in Damascus of Imad Mughniyeh looks like an unambiguous victory.

Before Osama bin Laden took the spotlight, Mughniyeh was probably the world's most wanted and elusive terrorist, a man with an FBI price tag of $5 million on his head. He masterminded some of Hezbollah's deadliest attacks in the 1980s and 1990s,...